I think these details are important and can affect the whole design. I believe that when doing any design it's worth paying special attention to even the smallest details. For example, before, I didn't pay attention to the choice of fonts. But now, I realized that this can greatly improve the quality of the design and make it unique. I use this source https://masterbundles.com/sexy-font/ when I need to choose unusual designer fonts. And it helps a lot to complement the whole design.